potiuk edited a comment on pull request #19860:
URL: https://github.com/apache/airflow/pull/19860#issuecomment-983543457


   > Would changing our logging config/setup so we don't need to re-load 
settings help here do you think, or is this just a symptom of the problem but 
not the cause?
   
   If we do not to do any "ORM reload magic" at the start of the DagProcessor, 
I believe it would help. The "spawned" processes are supposed to work just 
fine, but I think in this case we are likely hitting some optimisations and 
shared memory reused by the c- libraries in the database drivers, that are 
likely corrupted during the reinitialisation of the ORM. It's like the same 
library is initialized twice I think, where it should not - and that's the root 
cause of the problem IMHO.
   
   


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